Pressure mechanism for roll stands



Sept.4, l928. 1,683,583

w. A. CARPENTER PRESSURE MECHANISM FOR ROLL STANDS Filed May 18, 1927 W (av xvii",

Patented Sept. 4, 1928.

' UNITED wI InM A.

TATES PATENTOFFICE; I

outrun-run, or HARTSVI'LL sour CAROLINA, ASSIGNOR. or ONE-HALF TO 0. H. CAMPBELL, or HARTSVILLE, sour CAROLINA.

rnnssonn mncnnmsm ron ROLL STANDS.

Application filed May 18,

This invention relates to pressure 'regu lating mechanism for roll stands, and more a speeder frames,but, I have combined weighted means with tension means, and means for regulating both the weight exerted and the tension placed upon the rolls.

An object of my invention is to provide in spinning frames and the like, means for regu- .lating the pressure of the rolls, said means 7 comprising a combination of tension means and weight means, and means for adjusting both the weight and tension means Another object of my invention is to combine tension and weight means for regulating the pressure of rolls in spinning frames and the like, and means for regulating the said means. Q 7 j Some of the objects of invention havlng been stated, other objects will appear, when taken in connection with the accompanying drawings, setting forth a preferred embodi ment of my invention, in which- Figure 1 is a side'elevation, partly in section of a; spinning frame, showing my device for regulating the pressure on the rolls iii-place; J i

Figure 2 is a. cross-sectional view taken along the line 2-2 in Figure 1; j

Figure 3 is an enlarged front elevation of the hooked member attached to the frame for holding my device in operation.

A brief description of'the' drawings hav- J ing been given, other objects and details will more definitely appear by particular refer-' ence to the various parts of my structure by reference characters,the reference characters indicating corresponding parts throughout indicates the main stand of the s inning frame, which has a plurality of rawing rolls 11, 12, '13, 14, 15 and 16 fixedly mounted onsu-itable shafts 17, 18, 19, 20, 21 and 22. l

, Resting on the top portions of the shafts 17, 19 and'21 are the equalizing levers, 23 and 24t, the lever 24 having a notch or other suitable means for holding the upper 'end of the tension device 25. This tension device has the ring portion 26 which fits around the lever the drawings, and in which the; numeral 10" 1927. Serial No. 192,319.

24, and intermediate its ends it has the coiled spring portion 27, andat its lower end it has another ring portion 28 which is adapted to be inserted in any one of the holes 29in the lever 30.

Secured to the main stand portion 10, is the threaded member 31 which has an upwardly projecting portion 32, which portion has the slot 33 therein adapted to receive the hooked end of the lever 30. The lever has a plurality of notches 34 along its upper edge in which is adapted to rest the member 35, and the lower end of the member 35 has a hooked portion 36 on which a suitable if weight 37 may be placed and removed atwill.

By means of the holes 29, the notches 34:, the threaded member 31, and by adjusting the size of the weight 37, a very fine adjustment of the weight andpr'essure exerted upon the pressure rolls may be secured. By having the coiled portion 27 immediate response is made to unusual pres-sure caused by larger sections of the material passing thru the rolls, and the weight 37 aids in this resiliency. This arrangement gives a very fine adjustment of the tension and I find is much more desirable than a weight alone, or a coarsely adj ust-ed spring. j In the drawings and specification I have set forth a preferred embodiment of my invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being set forth in the appended claims.

7 'I claim: j r

1. Apressure regulating mechanism for drawing rolls and the like, comprising equala izing levers bearing on therolls, a member engaging the upper equalizing lever and extending downward betweenthe rolls, a section of thesaid memberbeing in the form of a coiled spring, a hook on the lower end-of the member, a lever pivoted to the mainframe of the roll stand, a vertically adjustable ful-- crum point forsaidlever', aplurality of holes in the said lever adapted to receive the hooked lower end of the said member, a plurality of notches in the upper edge of the said lever, and a weight-adapted to be adjustably secured in any oneof thenotches. V a l 2. [In a pressure regulating mechanismfor roll stands, a plurality of rolls mounted in the stand, a plurality of equalizing levers mounted above the rolls, a coiled springmemher having an eye in its upper end adapted to be secured to the topmost equalizing lever, an eye in the lower end of the coiled spring" member adapted to be inserted in any onerof I a plurality of holes in a lever, means for piv-j otally mounting the "last named lever tot'he base of the roll stand, said means being vertically adjustable, a plurality of notches in theupper edge of the last named lever, and 11 WILLIAM A. CARPENTER. 

